TITLE

Practical electron-tunneling refrigerator

AUTHOR(S)
Clark, A. M.; Williams, A.; Ruggiero, S. T.; Van Den Berg, M. L.; Ullom, J. N.
PUB. DATE
January 2004
SOURCE
Applied Physics Letters;1/26/2004, Vol. 84 Issue 4, p625
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We demonstrate a thin-film, solid-state refrigerator based on the removal of hot electrons from a metal by quantum-mechanical tunneling. We have reduced the electronic temperature in a metal film from 260 to ∼130 mK. The base temperature of the device is predicted to increase to near 140 mK under a power load of 10 pW. Both the cooling power and temperature reduction of the refrigerator are well matched to practical applications. This refrigerator will make high-performance cryogenic photon sensors more accessible to the astronomical and analytical communities.
ACCESSION #
12020863

 

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